Blog

On March 26th, JinkoSolar Co., Ltd. (SH: 688223) released the Q4 and full - year 2024 financial results of its controlling shareholder JinkoSolar Holding Co., Ltd. (NYSE: JKS), as well as the shipment forecasts for Q1 and the whole year of 2025.   The announcement shows that in Q4 2024, JKS's total shipment volume reached 26,462 megawatts (including 25,221 megawatts of solar modules, 1,241 megawatts of solar cells and silicon wafers), representing a 2.1% quarter - on - quarter increase and a 5.0% year - on - year decrease. The revenue in Q4 2024 amounted to RMB 20.65 billion (US$2.83 billion), a 15.7% decline quarter - on - quarter and a 37.1% decrease year - on - year. The quarter - on - quarter and year - on - year decreases were mainly due to the decline in the average selling price of solar modules.   In 2024, JKS's shipment volume reached 99,596 megawatts (including 92,873 megawatts of solar modules, 6,723 megawatts of solar cells and silicon wafers), a 19.2% year - on - year increase. The total revenue in 2024 was RMB 92.26 billion (US$12.64 billion), a 22.3% year - on - year decrease. The decrease in total revenue was mainly due to the decline in the average selling price of solar modules.   JKS expects the module shipment volume in Q1 2025 to be between 16 gigawatts and 18 gigawatts, and the module shipment volume for the whole year of 2025 is expected to be between 85 gigawatts and 100 gigawatts.

Recently, JA Solar has hit another "milestone" in sustainable development! Its Fengxian and Yangzhou manufacturing bases aced the Solar Sustainability Initiative (SSI) audit and snagged the "Silver Medal" certification. This top - tier SSI accolade in the PV world shows JA Solar's ESG efforts are now a global industry benchmark.     Unlike other certification bodies, the Solar Sustainability Initiative (SSI) is the first initiative organization that focuses on the sustainability and traceability of the supply chain in the photovoltaic industry. This organization was jointly launched by SolarPower Europe and Solar Energy UK. Its aim is to unite manufacturers, developers, installers, and purchasers within the global photovoltaic value chain to jointly promote the responsible production, procurement, and management of photovoltaic materials, and it has a huge influence.     Thanks to the authoritative background of the Solar Sustainability Initiative (SSI), most of the key developers and suppliers in the global photovoltaic industry have joined the organization. The project scales held by member enterprises and the output of related photovoltaic products account for a crucial share in the global market. Among them, all SSI member enterprises from the manufacturing sector must complete a strict on-site assessment by a compliant independent assessment body (AB) approved by SSI within 12 months. As of now, there are only 7 eligible assessment bodies.     Right from the start of the Solar Sustainability Initiative (SSI), JA Solar was knee - deep in shaping its sustainable standards. Manufacturing bases in Baotou, Ningjin, Yiwu and other locations served as SSI's first - round sustainable capacity research pilots. They provided invaluable examples for putting those standards into practice. Then, in October 2024, JA Solar's Baotou base took the lead again as the audit pilot for SSI's brand - new standards.     The SSI "Silver Medal" certification JA Solar just received is clear proof that the company has turned its standard - building know - how into real - world management wins. In recent years, JA Solar's headquarters and base departments joined forces. They overhauled a ton of systems, processes, and documents. This included biodiversity policies, carbon emission strategies, compliance risk management, life - cycle circularity plans, EHS targets, and control procedures. By constantly ramping up their sustainability efforts, JA Solar aced the SSI on - site audit with flying colors.     This SSI certification is a huge milestone for JA Solar, but it's just the beginning. Looking ahead, JA Solar is set on getting more of its manufacturing bases SSI - certified. The company also aims to blend sustainable development even deeper into its business operations. What's more, JA Solar will be right there, helping partners build their sustainable capabilities. With JA Solar at the helm, the global PV value chain is on track to create a far more responsible and resilient ecosystem.

Flexible solar panels, also known as thin-film solar panels, differ from traditional monocrystalline and polycrystalline solar panels in terms of materials, manufacturing processes, and flexibility. Here are some key points of comparison:   Material and Structure: Monocrystalline Solar Panels: Made from a single crystal structure, typically silicon. They are known for their high efficiency and space efficiency, making them suitable for applications with limited space. Polycrystalline Solar Panels: Composed of multiple crystals, usually silicon. They are less efficient than monocrystalline panels but are cost-effective and have a quicker manufacturing process.   Flexible Solar Panels (Thin-Film): Made from lightweight and flexible materials like amorphous silicon, cadmium telluride, or copper indium gallium selenide (CIGS). They are more adaptable and can be integrated into various surfaces.   Efficiency:   Monocrystalline and Polycrystalline Panels: Generally have higher efficiency compared to flexible solar panels. Monocrystalline panels tend to have the highest efficiency among all types of solar panels. Flexible Solar Panels: Historically, thin-film panels have had lower efficiency than crystalline silicon panels. However, advancements in technology have improved the efficiency of flexible panels, making them more competitive.   Flexibility and Weight:   Monocrystalline and Polycrystalline Panels: Rigid and heavier compared to flexible panels. They are typically mounted on fixed structures like rooftops or ground mounts. Flexible Solar Panels: Lightweight and flexible, allowing for integration into curved surfaces or applications where traditional panels may be impractical.   Durability and Lifespan:   Monocrystalline and Polycrystalline Panels: Generally have a longer lifespan and better durability than flexible panels. Flexible Solar Panels: While improvements have been made, thin-film panels may have a shorter lifespan and are more susceptible to damage from environmental factors.]   Cost:   Monocrystalline and Polycrystalline Panels: Generally cost-effective and have become more affordable over time. Flexible Solar Panels: Initially, thin-film panels were more expensive on a per-watt basis, but manufacturing advancements have led to cost reductions. They may still be more expensive than traditional panels, but the price gap has been narrowing.   Applications:   Monocrystalline and Polycrystalline Panels: Commonly used in traditional solar installations, such as residential and commercial rooftops and ground-mounted solar farms. Flexible Solar Panels: Suited for applications where flexibility is crucial, such as solar backpacks, curved surfaces, or portable solar panels.   In summary, the choice between flexible, monocrystalline, or polycrystalline solar panels depends on specific project requirements, space limitations, and budget considerations. Advances in technology continue to shape the solar industry, and ongoing research may further improve the efficiency and cost-effectiveness of flexible solar panels.  

On 17th January 2024, according to the announcement of the State Intellectual Property Office, LONGi Green Energy Technology Co., Ltd. applied for a patent titled "Electrode Metallisation Method of Solar Cells, Modules, and Systems", with Publication No. CN117410382A, and the filing date of November 2023, the abstract shows that the application discloses a metallization method of electrodes of solar cells, modules, and systems. According to the patent's abstract, the present application discloses a method of metalizing electrodes of a solar cell, module, and system. Among other things, said electrode metallization method comprises: preparing a conductive metallic material layer on a doped region; preparing a dielectric layer on a silicon substrate and said metallic material layer; and treating said dielectric layer to expose said metallic material layer to obtain a metallic electrode. The electrode metallization method of the embodiments of the present application ensures that reliably exposing the electrode does not damage the passivation contact, and at the same time has an annealing effect on the metallic material layer, which optimizes the ohmic contact between the metallic material layer and the doped region, and thus improves the efficiency of the battery.  

On Thursday, all the members of Anhui Solarasia Energy Technology Co., Ltd, participated in a fire safety lecture, which was hosted by instructor Cao. Instructor Cao showed the fire cases to all members of Solarasia, and explained in detail the common fire safety hazards and types of fire fighting equipment. Employees and instructor Cao had a positive Q&A interaction, which made the knowledge of fire safety penetrate into the hearts of the people in a laughing atmosphere.  

  On Friday, our team had an in-group communication meeting. After an in-depth discussion of the current sales platforms and the market situation, the product managers of Solarasia's professional team conducted their annual self-criticisms and reflections, and are ready to provide the most professional service to our existing and future customers. As a supplier of high-quality photovoltaic products, Solarasia is confident about the new year, seizing every upcoming opportunity and preparing for new challenges. We would like to thank all our customers for their trust and co-operation in the last year. In the new year, our team will continue to improve and develop, and we will still offer our best and most professional knowledge to serve our customers. 

When talking about the Topcon technology (Topcon technology All Black Solar Panel) for photovoltaic cells, we are actually talking about an advanced solar cell production technology that offers significant advantages in terms of improved cell conversion efficiency and performance. topcon, or "Tunnel Oxide Passivated Contact", is a surface engineering method that achieves enhanced electron conductivity and carrier surface complex losses by introducing specific amorphous silicon (a-Si) or microcrystalline silicon (μc-Si) thin films to the front and back surfaces of the cell. Topcon, or "Tunnel Oxide Passivated Contact", is a surface engineering method that enhances electronic conductivity and reduces carrier surface complex losses by introducing specific amorphous silicon (a-Si) or microcrystalline silicon (μc-Si) films on the front and back surfaces of the cell.    The core idea of the Topcon technology lies in the fact that passivation films are applied to both the positive (front surface) and negative (back surface) surfaces of the photovoltaic cell during the fabrication process, and these films play a key role in reducing electron-hole complex losses, improving electronic conductivity, and inhibiting surface reactions.   In the process, firstly, a layer of amorphous silicon or microcrystalline silicon film is coated on the front and back surfaces of the cell, respectively, by methods such as physical vapour deposition (PECVD). These films have excellent electronic conductivity and passivation properties, which can effectively reduce the surface compounding phenomenon of carriers. In addition, by forming a special oxide layer called "tunnel oxide" on the front surface of the cell, the collection and transport of carriers can be further enhanced, thus improving the efficiency of the cell.   The advantage of the Topcon technology is that it integrates the optimisation of the performance of the positive and negative surfaces through the design of the double-sided passivation, which significantly reduces the loss of electrons and holes from the complex on the surface. This helps to improve the efficiency of PV cells and provide more stable performance, especially in high temperature environments.   However, it is to be noted that the manufacturing process of the Topcon technology is more complex than the conventional process, which may lead to an increase in production costs. Therefore, in practical applications, the choice of whether to adopt the Topcon technology needs to be based on a combination of investment costs and the benefits of efficiency improvements. Overall, the Topcon technology represents an significant technological innovation in the field of solar cells and offers potential opportunities for further development of the photovoltaic industry and improvement of energy conversion efficiency.

N-Type TOPCon (N-Type Solar Panel) is a Tunnel Oxide Passivated Contact (TOPCon) solar cell technology based on the selective carrier principle. The cell structure of this technology is an N-type silicon substrate cell, an ultra-thin layer of silicon oxide is prepared on the backside of the cell, and then a thin layer of doped silicon is deposited, which together form a passivated contact structure. This technology effectively reduces the surface composite and metal contact composite, for N-PERT cell conversion efficiency to further enhance the provision of greater space.   Compared to conventional P-type PERC cells, N-type TOPCon cells have higher oligo lifetime and better performance, which gives N-type TOPCon cells more room for conversion efficiency improvement. In addition, N-Type TOPCon cells have better double-sidedness, which contributes to higher module power and power generation.   In conclusion, N-TOPCon is an advanced photovoltaic technology with great potential for development. By improving the conversion efficiency, reduce costs and improve reliability, N-type TOPCon cells can become the core competitiveness of the future photovoltaic market, the highest conversion rate is known to the public information in the independent research and development of J-TOPCon3.0 POPAID technology and M10 size n-type cell up to 26.7%.   P-type TOPCon is another type of photovoltaic cell and the difference between N-type TOPCon is as follows:   Raw material: N-type photovoltaic cells are doped with elemental phosphorus, while P-type photovoltaic cells are doped with elemental boron. Conductivity: N-type photovoltaic cells are electronically conductive, while P-type photovoltaic cells are hole conductive. Lesson life: N-type photovoltaic cells have a longer lesson life, while P-type photovoltaic cells have a shorter lesson life. Performance: N-type photovoltaic cells have higher conversion efficiency, shorter process, better resistance to attenuation, lower temperature coefficient, but higher production cost. The P-type photovoltaic cell conversion efficiency is lower, the process is longer, poorer attenuation resistance, higher temperature coefficient, but the production cost is lower. Development trend: the current development trend of N-type photovoltaic cells is more obvious, because of its higher conversion efficiency, shorter process, better anti-attenuation, lower temperature coefficient, which is conducive to improving photovoltaic power generation and reduce power generation costs.